Home / 30,250.62-45,375.93-12,481.02

Finding the Fourth Proportional to 30,250.62, 45,375.93 and 12,481.02

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Solution

The fourth proportional to 30,250.62, 45,375.93 and 12,481.02 is: 18,721.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,250.62 : 45,375.93 = 12,481.02 : x
  2. Step 2: Convert to fraction form
    30,250.62/45,375.93 = 12,481.02/x
  3. Step 3: Cross multiply
    30,250.62x = 45,375.93 × 12,481.02
  4. Step 4: Simplify right side
    30,250.62x = 566,337,889.85
  5. Step 5: Solve for x
    x = 566,337,889.85/30,250.62
  6. Step 6: Final answer
    x = 18,721.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.